Machine for making briquets



Patented Apr. 26, 1921.

'2 SHEETS-SHEET I.

C. D. JENKINS.

Patented Apr. 26, 1921.

2 SHEEIS-SIIEET 2- III/I MACHINE FOR MAKING BBIQUETS,

APPLICATION 'FILED MAY I, I915- CHARLES D. J'IENEKIN S, OF BOSTON, MASSACHUSETTS.

MAGHI1\TE FOR MAKING BRIQUETS.

To all 20 ham it may concern:

Be it known that 1, CHARLES D. JENKINS,

' a citizen of the United States, and resident of Boston, in the county of Suffolk and State of Massachusetts, have invented oertain new and useful Improvements in-Machines for Making Briquets, of which the following is a specification.

restricted to that particular use.

. proved machine of the class in question. t

- The accompanying drawings illustrate an embodiment of the invention.

In the drawings,-

Figure 1 is a central vertical sectional view of the said embodiment.

Fig.2 is a sectional detail hereinafter described.

Fig. 3-is a horizontal section on line 33 The machine shown: inv the drawings comprises revolving pressingmembers consisting of-a' ring-or annulus 3. and a wheel 2, the said wheel being eccentrically arranged within said ring or annulus.- The periphery .ofthe said wheel, as shownherein, works at one side against or close to the inner periphery of the ring orannulus 3. fThe two walls 1 and 5 of the chamber that is inclosed by the ring or annulus 3 are separate stationarily supported parts between which the ring or annulus 3 and wheel 2 are'free to rotate. The wall 5 of said chamber rests upon posts 6, the two walls-4 and5 being. i fastened to the said posts by bolts 7 extending through spacing-sleeves 8 which hold;

the two walls separated so as to leave the ring or annulus and wheel free to rotate be-.

tween the walls.

The ring or annulus 3 is surrounded in part by a series ofrolls 9 and 16 which 3 serve tohold it in position to cooperate with wheel 2'. The rolls-9 are given capacity for a certain outward yielding action. They are shown herein :as havingthe journals of their spindles 10 fitted to boxes 11 that are Specification of Letters Patent. Patented A1913 26 1921 Application filed May 1, 1915. Serial No. 25,135. 7

Fit.

mounted in slots 12 provided in the walls 4E and 5, said slots being radial relative to the wheel The boxes 11 of each pair are backed by springs 13 which are compressed between the boxes and a bar 14 that is mounted at its ends slidably in the slots 12.

Each end of a bar 14 is supported with provision for adjustmentby a screw 15 to vary the tension of the springs 13. This construction provides a yielding support forthe rolls 9 so that the latter can yield under excessive pressure from ring or annulus 3,

which will be desirable when operating v upon some kinds of materials but not always necessary. .That is, with some materials, the rolls 9 need not be yieldingly backed up. The side rolls 16 are mountcdon spindles 17 journaled at their ends in bear ings on walls 4 and p The wall 3 is considerably larger in diameter than the wheel 2, which provides a crescent-shaped space 18 between said parts within one portionfof which isarranged a hollow segmental shoe 19, the latter having a steam supply pipe 20, Fig. 1, communicating therewith, and also having a steam outlet 21 with which a steam exhaust pipe 22 connects. The inner side of shoe 19 is curved and is concentric'with the axis of wheel2 and arranged close to the periphery of the latter.

Adjacent one end of shoe 19 the wall 5 is made with an opening 23 which serves as an outlet for the molded articles.

The crescent-shapedchamber or space 18 within ring or annulus 3 is separated into two parts by a substantially radial partition wall 24 occupying a position alongside" of outlet 23, said partition. being conveniently an integral depending part of wall 4; and immediately adjacent an opening 25, Fig. 2, formed insaid wall. This opening '25 is the entrance or inletfor the material thatis to be treated, said material being deposited in a hopper 26 secured to wall 4: with its outlet registering with inlet .25.

The material is forced out of hopper 26 into with a sprocket 31 fastened to the adjacent end of a shaft 32 journaled in bearings provided in walls 4 and 5, and to this shaft 32 is also fixed the wheel 2. Shaft 31 carries a bevel gear 33 that is driven by a bevel gear 34 fast on a power driven shaft 35.

The wheel 2 is made with a plurality of radial pockets 36 in each of which is slidably mounted a plunger 37 carrylng two cam rolls 38 occupying corresponding cam grooves 39 formed upon the inner sides of walls 4 and 5.

During the operation of the machine the rotation of wheel 2 in the direction of the arrow, Fig. 3, slides the rolls 38 along cam grooves 39.

' pressing, the material within the pocket.

In addition, as ring or annulus 3 and wheel 2 rotate, thematerial within chamber 18 is compressed between their converging surfaces in the contracting portion of the said chamber so that thereby the material is forced to enter into the molding pockets, the excess material being held back.

After leaving the point of coincidence between the periphery of wheel 2 and the inner periphery of ring or annulus 3, each plunger remains stationary within its pocket while the compressed material within the latter travels along the heating shoe 19, the heat from which serves to drive off moisture from said material. As each pocket nears the large end of shoe 19 the plunger 37 thereof is slightly retracted to break the adherence between. the contents of the pocket and the plunger and then, while the pocketis opposite outlet 23 the plunger is quickly shifted to the limit of its outward movement, thereby throwing the compressed material clear of wheel 2 andcausing it to fall'by gravity through outlet 23.

During the rotation of wheel 2 and ring or annulus 3 thefeed screw 27 continuously supplies fresh material to .chamber 18.

The drawings show the preferred arrangement of the parts of the machine, namely with the ring or annulus and wheel disposed so that their axes are vertical, so that walls 4' and 5 constitute the top and bottom, respectively, of the chamber that As each plunger approaches partition 24 it is moved outward by the .wheel shall be completely filled and shall contain uniform quantities of material. By having the ring or annulus and wheel arranged to work horizontally, it ismade possible to construct the machine of, a low height, thereby enabling its receiving hopper 26 to be located belowthe discharge outlet.

of a preliminary machine from which it is desired that the material shall pass tothe molding machine. 7

The wheel 2 is shown'as having its periphery divided up into pockets each of.

which is in the form of a concavity extending transversely across the working face of the wheel. ,These concavities are immediately contiguous, being separated from one another by comparatively thin.

partitions 24, so that they comprise practically the entire periphery of the wheel. In the rotation of the ring or annulus and wheel. the projecting portions of thepartitions enter the mass ofrmaterial which 00-.

cupies the space between the converging walls of the ring or annulus and wheel, so that they operate to separate the said mass into portions which are received withinthe pockets. Preferably,in order to facilitate their penetration into and through'the mass of material, the outer portions of the partitions are made practicallyknife-edge.

What I claim is 1. A machine operating by rolling compression, comprising pressing members consisting of a ring and a wheel eccentrically arranged within the ring, and means yieldingly holding the wheel and ring in working relation to each other. 7

2. A machine of'the character described comprising a pair of rotatable members consisting of a ring, a wheel eccentrically arranged within the ring, one of said members provided upon its periphery with molding pockets, and a heated shoe within the crescent-shaped chamber between said members, along which the molded material is carried by rotation of said members.

3. A machine operating by rolling compression comprising an outer revolving ring or annulus, and an inclosed wheel eccentrically related to said rm'gor annulus, one of said members having 1ts perlphery divided up into concavities extending trans versely wholly across its periphery.

4. machine operating by rolling compresslon comprislng an outer revolving ring or annulus, and an inclosed Wheel eccentrically related to said ring or annulus, one of said members having its periphery divided up into concavities extending Wholly across its'periphery, with said concavities immediately contiguous one another and separated by partitions adapted to enter into the mass of material occupying the tapering space between converging surfaces of the ring or annulus and Wheel. 10

In testimony whereof I have afiixed my signature.

CHARLES D. JENKINS. 

